<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="../bootstrap/css/bootstrap.css">
</head>
<body>

<div class="btn-group" role="group" aria-label="Basic mixed styles example">
    <button type="button" class="btn btn-danger">Left</button>
    <button type="button" class="btn btn-warning">Middle</button>
    <button type="button" class="btn btn-success">Right</button>
</div>

<script src="../bootstrap/js/bootstrap.js"></script>
</body>
</html>